Planning Statement PUTEF.Pdf
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Thames Tideway Tunnel Thames Water Utilities Limited Application for Development Consent Application Reference Number: WWO10001 Planning Statement Doc Ref: 7.01 Appendix D APFP Regulations 2009: Regulation 5(2)(q) Hard copy available in Box 44 Folder A Appendix D January 2013 This page is intentionally blank Thames Tideway Tunnel Planning Statement Appendix D: Putney Embankment Foreshore List of contents Page number D.1 Introduction ....................................................................................................... 1 D.2 Site description ................................................................................................. 1 D.3 Planning context ............................................................................................... 4 D.4 Site-specific description of development ....................................................... 6 Overview ............................................................................................................. 6 Application for development consent .................................................................. 8 Construction ...................................................................................................... 10 Temporary slipway ............................................................................................ 11 Site preparation ................................................................................................ 12 Shaft construction ............................................................................................. 12 Tunnelling ......................................................................................................... 12 Secondary lining of connection tunnel and shaft ............................................... 13 Construction of other structures ........................................................................ 13 Completion of works and site restoration .......................................................... 13 Operation and maintenance .............................................................................. 14 CSO drop shaft ................................................................................................. 14 Chambers and culverts ..................................................................................... 14 Ventilation structures ........................................................................................ 15 Electrical and control kiosks .............................................................................. 15 Permanent restoration and landscaping ........................................................... 15 Access .............................................................................................................. 15 Typical maintenance regime ............................................................................. 16 Scheme development ....................................................................................... 16 D.5 Site-specific planning considerations .......................................................... 22 Meeting the need .............................................................................................. 22 Good design ..................................................................................................... 24 Create a new area of public realm on the river ................................................. 25 Celebrate Putney’s river heritage ...................................................................... 26 Enhance existing moorings ............................................................................... 26 Planning Statement i D.6 Managing construction impacts .................................................................... 27 Conclusion ........................................................................................................ 27 Water quality and flood risk ............................................................................... 27 Air quality, emissions, dust and odour .............................................................. 30 Biodiversity and geological conservation .......................................................... 31 Landscape and visual impacts (include townscape) ......................................... 32 Land use including open space, green infrastructure and green belt ................ 34 Noise and vibration ........................................................................................... 37 Historic environment ......................................................................................... 39 Light...................................................................................................................43 Traffic and transport .......................................................................................... 43 Waste management .......................................................................................... 48 Socio-economic ................................................................................................ 48 D.7 Overall conclusions ........................................................................................ 50 Annex D: Drawings for Putney Embankment Foreshore ..................................... 53 List of figures Page number Figure D.1 Aerial photograph of Putney Embankment Foreshore ............................... 2 Figure D.2 Photograph of the temporary slipway site from Embankment looking east 3 Figure D.3 Photograph of the temporary slipway site from the foreshore looking east 3 Figure D.4 Functional components diagram ................................................................ 7 Figure D.5 Construction timeline ............................................................................... 10 Figure D.6 Location of the preferred site at phase one consultation ......................... 18 Figure D.7 Location of the preferred site at phase two consultation .......................... 19 Figure D.8 Location of the preferred site at targeted consultation and the proposed site at Section 48 publicity ......................................................................................... 21 Figure D.9 Estimated construction lorry profile .......................................................... 45 List of tables Page number Table D.1 Putney Embankment Foreshore: Drawings that define the proposed development ................................................................................................................ 8 Planning Statement ii Appendix D: Putney Embankment Foreshore Appendix D: Putney Embankment Foreshore D.1 Introduction D.1.1 In an average year, the Putney Bridge combined sewer overflow (CSO) discharges on average a total of 68,000m3 of untreated sewage in 33 events into the tidal Thames. On the basis that litter tonnages are proportional to discharge volumes, it also discharges approximately ten tonnes of sewage derived litter in a typical year. A worksite is required to connect the Putney Bridge CSO to the main tunnel. The proposed development site is known as Putney Embankment Foreshore, which is located in the London Borough of Wandsworth. D.1.2 The Environment Agency identified the Putney Bridge CSO as a CSO that needs to be controlled, and Thames Water’s solution to deal with this CSO is full interception. The CSO discharges have multiple impacts on water quality at the outfall location. This includes a localised effect of rapidly dropping dissolved oxygen levels, released pollutants and of sewage litter and effluent. D.1.3 Catchment modelling suggests that if the project is constructed as proposed, the annual discharge of untreated sewage into the tidal Thames would be reduced to 1,600m3, and that the number of discharges would be reduced to one event per year. The sewage derived litter from the CSO can be expected to reduce by approximately 98 per cent to less than half a tonne in a typical year. The frequency, duration and volume of spills at Putney Bridge CSO would therefore be reduced by approximately 98 per cent as a result of the operation of the project. A site location plan is included in Annex D. D.1.4 This assessment is structured as follows: a. Section D.2 provides a brief description of the Putney Embankment Foreshore site. b. Section D.3 sets out the planning context for works in this location. c. Section D.4 describes the site-specific development for which consent is sought and the way in which the proposals evolved in response to consultation d. Section D.5 provides an analysis of the principal site-specific planning considerations and how the proposals comply with relevant planning policy e. Section D.6 provides an overall conclusion of the site-specific assessment. D.2 Site description D.2.1 The site itself comprises of two areas of the foreshore of the River Thames, the main site is known as Putney Embankment Foreshore and the secondary site known as Putney Embankment Temporary Slipway. Planning Statement D-1 Appendix D: Putney Embankment Foreshore The main and secondary sites are defined by the limits of land to be acquired or used and cover areas of approximately 1.6 ha and 1.2 ha, respectively. An aerial photo of the main Putney Embankment Foreshore site is provided in Figure D.1 below. Figure D.1 Aerial photograph of Putney Embankment Foreshore D.2.2 The main site is bounded by the River Thames to the north, the Grade II* listed St Mary’s Church to the east, the Embankment carriageway and Lower Richmond Road to the south and Putney Pier to the west. The